# Mareas vs Lineup Surf Forecast

The clearest difference is update cadence: Lineup Surf Forecast at every 2 weeks against Mareas's every 3 months. Lineup Surf Forecast also leads on review sentiment (100% vs 71%). Mareas's advantage is monetization model (free vs ad-supported) and device support (4 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mareas ships an update every 3 months, Lineup Surf Forecast every 2 weeks. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Mareas | Lineup Surf Forecast |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 56 MB | 60 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ruben Fernandez](https://appshunter.io/developer/1013021034) | [Diego Iglesias](https://appshunter.io/developer/1554147129) |

## What reviewers say

### Mareas

[App page](https://appshunter.io/ios/app/mareas/id1522201767)

Access tide information for Spanish ports offline. View tide status, current height, and upcoming high/low tides. Includes home screen widgets and Apple Watch support.

**Highlights:** Offline tide data for Spanish ports, Current tide status (rising/falling), Tide height and coefficients, Upcoming high and low tides, Home screen and lock screen widgets, Apple Watch companion app, Siri integration for tide queries

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Lineup Surf Forecast

[App page](https://appshunter.io/ios/app/lineup-surf-forecast/id1554147127)

Plan your surf sessions with reliable and intuitive forecasts. This app provides detailed swell, tide, and weather predictions tailored to your specific surf spots, helping you catch the best waves.

**Highlights:** Spot-specific swell forecasts, 7-day NOAA, GFS, WAM, HARMONIE-AROME predictions, Real-time buoy data and alerts, Interactive swell map, Live webcam access, Favorite spots, Water temperature and solar schedule

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mareas free?

Mareas is free to download, with no in-app purchases.

### Is Lineup Surf Forecast free?

Lineup Surf Forecast is free to download, with no in-app purchases.

### Do Mareas or Lineup Surf Forecast have ads?

Neither Mareas nor Lineup Surf Forecast shows ads.

### Which is updated more often, Mareas or Lineup Surf Forecast?

Mareas ships an update every 3 months, and Lineup Surf Forecast every 2 weeks. Most recently, Mareas was updated on October 17, 2026 and Lineup Surf Forecast on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*